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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYuji Yoshida, Masami Funakura, Mitsuharu Matsuo, Minoru Tagashira
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The present invention provides an apparatus for charging a three-component mixed refrigerant substitutable for R22 or R502 and a method for charging the three-component mixed refrigerant. A high-boiling point refrigerant container and a metering device for the high-boiling point refrigerant and a container for an azeotrope-like mixed refrigerant lower in boiling point than said high-boiling point refrigerant and a metering device for the azeotrope-like mixed refrigerant are connected to one pipe line having a refrigerant charging port, and a given amount of the high-boiling point refrigerant and a given amount of the lower boiling point azeotrope-like mixed refrigerant are metered and charged in this order in a heat pump apparatus.
An apparatus for charging a three-component mixed refrigerant comprising a pipeline, a refrigerant charging port formed at the pipe line, and a container for a high-boiling-point refrigerant and a container for an azeotrope-like mixed refrigerant lower in boiling point than said high-boiling point refrigerant which are connected to the pipeline through metering devices, a given amount of the high-boiling point refrigerant and a given amount of the azeotrope-like mixed refrigerant being charged in a heat pump apparatus with being metered in this order.
A method for charging a three-component mixed refrigerant which comprises charging a given amount of a high-boiling-point refrigerant in a heat pump apparatus through a pipeline and then charging a given amount of an azeotrope-like mixed refrigerant lower in boiling point than the high-boiling-point refrigerant in the heat pump apparatus through the pipeline.
Dependencies are inferred from the claim text.